Replace clear_bit() with xor_bit()

[stockfish] / src / move.cpp

diff --git a/src/move.cpp b/src/move.cpp
index d84533a1080c57e4ecdf9ea69b415587a2558215..4b1285e4df795c66971f30e40e17b93ddd3e0612 100644 (file)
--- a/src/move.cpp
+++ b/src/move.cpp
@@ -18,7 +18,6 @@
 */
 
 #include <cassert>
-#include <cstring>
 #include <string>
 
 #include "movegen.h"
@@ -33,8 +32,8 @@ using std::string;
 
 const string move_to_uci(Move m, bool chess960) {
 
-  Square from = move_from(m);
-  Square to = move_to(m);
+  Square from = from_sq(m);
+  Square to = to_sq(m);
   string promotion;
 
   if (m == MOVE_NONE)
@@ -83,13 +82,13 @@ const string move_to_san(Position& pos, Move m) {
 
   Bitboard attackers;
   bool ambiguousMove, ambiguousFile, ambiguousRank;
-  Square sq, from = move_from(m);
-  Square to = move_to(m);
+  Square sq, from = from_sq(m);
+  Square to = to_sq(m);
   PieceType pt = type_of(pos.piece_on(from));
   string san;
 
   if (is_castle(m))
-      san = (move_to(m) < move_from(m) ? "O-O-O" : "O-O");
+      san = (to_sq(m) < from_sq(m) ? "O-O-O" : "O-O");
   else
   {
       if (pt != PAWN)
@@ -99,7 +98,7 @@ const string move_to_san(Position& pos, Move m) {
           // Disambiguation if we have more then one piece with destination 'to'
           // note that for pawns is not needed because starting file is explicit.
           attackers = pos.attackers_to(to) & pos.pieces(pt, pos.side_to_move());
-          clear_bit(&attackers, from);
+          xor_bit(&attackers, from);
           ambiguousMove = ambiguousFile = ambiguousRank = false;
 
           while (attackers)
@@ -147,13 +146,13 @@ const string move_to_san(Position& pos, Move m) {
       }
   }
 
-  // The move gives check? We don't use pos.move_gives_check() here
-  // because we need to test for a mate after the move is done.
-  StateInfo st;
-  pos.do_move(m, st);
-  if (pos.in_check())
-      san += pos.is_mate() ? "#" : "+";
-  pos.undo_move(m);
+  if (pos.move_gives_check(m, CheckInfo(pos)))
+  {
+      StateInfo st;
+      pos.do_move(m, st);
+      san += MoveList<MV_LEGAL>(pos).size() ? "+" : "#";
+      pos.undo_move(m);
+  }
 
   return san;
 }